Dictionary » F » F-positive bacterium

F-positive bacterium

Definition

noun, plural: F+ bacteria

A bacterium with F factor existing as a plasmid and not integrated in the bacterial genome.


Supplement

The F in F factor stands for fertility and the presence of F factor as a plasmid is the distinctive feature of F+ bacteria. During conjugation, F+ bacterium transfers a copy of F factor DNA with F- bacterium, making the latter capable of producing a sex pilus and thereby also making it capable of conjugation with other bacteria.


Compare (with other groups of bacteria in terms of F factor):

See also:


Please contribute to this project, if you have more information about this term feel free to edit this page



Results from our forum


Cancer more than animals animals

I think you probably had seen the tumor in plants produced by a bacterium. Please use the link. http://en.m.wikipedia.org/wiki/Agrobacterium_tumefaciens

See entire post
by josem
Sat Oct 04, 2014 8:50 pm
 
Forum: Cell Biology
Topic: Cancer more than animals animals
Replies: 2
Views: 236

A theoretical question - Genetic manipulation

Scientists have already created a bacterium from chemicals.

See entire post
by josem
Wed Jul 23, 2014 7:00 pm
 
Forum: Microbiology
Topic: A theoretical question - Genetic manipulation
Replies: 4
Views: 4829

Newbie question about the first life

... in cells. One of them says that the first host that "swallowed" one was a eukaryotic cell, the other one says that the host was a bacterium, in other words, a prokaryotic cell. I'm not really sure about the idea that motochondria were developed inside a cell rather than being initially ...

See entire post
by piscilactovegetarian
Fri Feb 28, 2014 12:10 am
 
Forum: Molecular Biology
Topic: Newbie question about the first life
Replies: 14
Views: 10524

Newbie question about the first life

... no models showing how the genetic machinery could have developed. The first creatures were bacteria (that's the plural, the singular being "bacterium"). They are prokaryotic cells (they lack a nucleus). This type of simpler cell has no mitochondria (plural [singular: "mitochondrion"]). ...

See entire post
by piscilactovegetarian
Tue Feb 25, 2014 10:21 am
 
Forum: Molecular Biology
Topic: Newbie question about the first life
Replies: 14
Views: 10524

A theoretical question - Genetic manipulation

... you want an idea to create a superbug. Is it possible - yes. What you need is a mad scientist. You asked if it's possible to create an artificial bacterium or virus - the answer is yes. However, why would anyone want to re-invent the wheel? As far as affecting personality, how about a virus that ...

See entire post
by Cat
Sun Dec 08, 2013 6:49 pm
 
Forum: Microbiology
Topic: A theoretical question - Genetic manipulation
Replies: 4
Views: 4829
View all matching forum results

This page was last modified 08:23, 3 August 2010. This page has been accessed 3,399 times. 
What links here | Related changes | Permanent link